18.4.1.32 Replication and Time Zones

By default, master and slave servers assume that they are in the
same time zone. If you are replicating between servers in
different time zones, the time zone must be set on both master
and slave. Otherwise, statements depending on the local time on
the master are not replicated properly, such as statements that
use the NOW() or
FROM_UNIXTIME() functions. Set
the time zone in which MySQL server runs by using the
--timezone=timezone_name
option of the mysqld_safe script or by
setting the TZ environment variable. See also
Section 18.4.1.16, “Replication and System Functions”.